OSSerial.h

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#ifndef _DOLPHIN_OSSERIAL_H
#define _DOLPHIN_OSSERIAL_H
 
#include <dolphin/hw_regs.h>
 
#define CHAN_NONE -1
 
#define SI_MAX_CHAN 4
 
#define SI_COMCSR_IDX 13
#define SI_STATUS_IDX 14
 
#define SI_COMCSR_TCINT_MASK (1 << 31)
#define SI_COMCSR_TCINTMSK_MASK (1 << 30)
#define SI_COMCSR_COMERR_MASK (1 << 29)
#define SI_COMCSR_RDSTINT_MASK (1 << 28)
#define SI_COMCSR_RDSTINTMSK_MASK (1 << 27)
// 4 bits of padding
#define SI_COMCSR_OUTLNGTH_MASK                                               \
    (1 << 22) | (1 << 21) | (1 << 20) | (1 << 19) | (1 << 18) | (1 << 17) |   \
        (1 << 16)
// 1 bit of padding
#define SI_COMCSR_INLNGTH_MASK                                                \
    (1 << 14) | (1 << 13) | (1 << 12) | (1 << 11) | (1 << 10) | (1 << 9) |    \
        (1 << 8)
// 5 bits of padding
#define SI_COMCSR_CHANNEL_MASK (1 << 2) | (1 << 1)
#define SI_COMCSR_TSTART_MASK (1 << 0)
 
typedef void (*SITypeAndStatusCallback)(long chan, unsigned long type);
 
struct SIControl {
    long chan;
    unsigned long poll;
    unsigned long inputBytes;
    void* input;
    void (*callback)(long, unsigned long, struct OSContext*);
};
 
struct SIPacket {
    long chan;
    void* output;
    unsigned long outputBytes;
    void* input;
    unsigned long inputBytes;
    void (*callback)(long, unsigned long, struct OSContext*);
    long long time;
};
 
int SIBusy();
BOOL SIIsChanBusy(int chan);
BOOL SIRegisterPollingHandler(__OSInterruptHandler);
BOOL SIUnregisterPollingHandler(__OSInterruptHandler);
void SIInit();
unsigned long SISync();
unsigned long SIGetStatus(int);
void SISetCommand(long chan, unsigned long command);
unsigned long SIGetCommand(long chan);
void SITransferCommands();
unsigned long SISetXY(unsigned long x, unsigned long y);
unsigned long SIEnablePolling(unsigned long poll);
unsigned long SIDisablePolling(unsigned long poll);
int SIGetResponse(long chan, void* data);
int SITransfer(long chan, void* output, unsigned long outputBytes, void* input,
               unsigned long inputBytes,
               void (*callback)(long, unsigned long, struct OSContext*),
               OSTime delay);
unsigned long SIGetType(long chan);
unsigned long SIGetTypeAsync(long chan, SITypeAndStatusCallback callback);
 
#endif // _DOLPHIN_OSSERIAL_H